The dashed triangle is the image of the solid triangle. The center of dilation is (6, 6). What is the scale factor used to create the dilation?

The reduction is from 15 tiles wide to 3 tiles wide, what number do you think 15 would have to be divided by to get 3?

5?

Correct. Now then, is the figure's translation increasing or decreasing in size? (this will determine the scale factor for the dilation)

Increasing?

note: the image is what has happened after the events

Oh, so it's decreasing

yes.

oh, uh, I just realized I made an error in helping you, you were supposed to "(image length)/(preimage length)" (apologies, it has been some time since I have did this part of geometry)

Oh, no worries at all, do you know the answer?

Yes I do, but I wish to work you through the steps so that you don't get stuck in this rut again.

So, we know the length of the 2 triangles, right? Pre-image is the large triangle Image is the small one Since the dilation is decreasing the size of the pre-image, you are to divide the length of the image by the length of the pre-image then simplify.

IDK if you have to post your response in fraction or decimal form though.

Oh I think either is fine

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